#rustup

[necrotech-puppywitch]

Finally did system (I use Arch btw (custom kernel I compiled myself) reinstall and switched to hyprland. Now I have become hyprland superiorist, destroyer of d env users, fuck that bloat, the gui is bloat. I should rewrite everything on my system in rust and force it to use a tui. The tui is better anyway, just as capable as any gui. Wayland is superior (until I get bored with it). Idk im jwust a silly :3

[this-week-in-rust]

This Week in Rust 595

Hello and welcome to another issue of This Week in Rust! Rust is a programming language empowering everyone to build reliable and efficient software. This is a weekly summary of its progress and community. Want something mentioned? Tag us at @thisweekinrust.bsky.social on Bluesky or @ThisWeekinRust on mastodon.social, or send us a pull request. Want to get involved? We love contributions.

This Week in Rust is openly developed on GitHub and archives can be viewed at this-week-in-rust.org. If you find any errors in this week's issue, please submit a PR.

Want TWIR in your inbox? Subscribe here.

Updates from Rust Community

Official

March Project Goals Update

Newsletters

The Embedded Rustacean Issue #43

Project/Tooling Updates

Shadertoys ported to Rust GPU

Meilisearch 1.14 - composite embedders, embedding cache, granular filterable attributes, and batch document retrieval by ID

rust-query 0.4: structural types and other new features

Observations/Thoughts

Rebuilding Prime Video UI with Rust and WebAssembly

ALP Rust is faster than C++

what if the poison were rust?

A surprising enum size optimization in the Rust compiler

Two Years of Rust

An ECS lite architecture

A 2025 Survey of Rust GUI Libraries

BTrees, Inverted Indices, and a Model for Full Text Search

Cutting Down Rust Compile Times From 30 to 2 Minutes With One Thousand Crates

SIMD in zlib-rs (part 1): Autovectorization and target features

Avoiding memory fragmentation in Rust with jemalloc

[video] Bevy Basics: Who Observes the Observer

Rust Walkthroughs

Rust Type System Deep Dive From GATs to Type Erasure

Async from scratch 1: What's in a Future, anyway? | natkr's ramblings

Async from scratch 2: Wake me maybe | natkr's ramblings

Building a search engine from scratch, in Rust: part 4

Pretty State Machine Patterns in Rust

[video] Build with Naz : Declarative macros in Rust

Miscellaneous

March 2025 Jobs Report

Rust resources

Crate of the Week

This week's crate is wgpu, a cross-platform graphics and compute library based on WebGPU.

Despite a lack of suggestions, llogiq is pleased with his choice.

Please submit your suggestions and votes for next week!

Calls for Testing

An important step for RFC implementation is for people to experiment with the implementation and give feedback, especially before stabilization.

If you are a feature implementer and would like your RFC to appear in this list, add a call-for-testing label to your RFC along with a comment providing testing instructions and/or guidance on which aspect(s) of the feature need testing.

No calls for testing were issued this week by Rust, Rust language RFCs or Rustup.*

Let us know if you would like your feature to be tracked as a part of this list.

RFCs

Rust

Rustup

If you are a feature implementer and would like your RFC to appear on the above list, add the new call-for-testing label to your RFC along with a comment providing testing instructions and/or guidance on which aspect(s) of the feature need testing.

Call for Participation; projects and speakers

CFP - Projects

Always wanted to contribute to open-source projects but did not know where to start? Every week we highlight some tasks from the Rust community for you to pick and get started!

Some of these tasks may also have mentors available, visit the task page for more information.

rama - add serve command to rama-cli

rama - add support for include_dir for to ServeDir and related

rama - add curl module to rama-http-types

If you are a Rust project owner and are looking for contributors, please submit tasks here or through a PR to TWiR or by reaching out on X (formerly Twitter) or Mastodon!

CFP - Events

Are you a new or experienced speaker looking for a place to share something cool? This section highlights events that are being planned and are accepting submissions to join their event as a speaker.

If you are an event organizer hoping to expand the reach of your event, please submit a link to the website through a PR to TWiR or by reaching out on X (formerly Twitter) or Mastodon!

Updates from the Rust Project

480 pull requests were merged in the last week

Compiler

detect and provide suggestion for &raw EXPR

don't suggest the use of impl Trait in closure parameter

make the compiler suggest actual paths instead of visible paths if the visible paths are through any doc hidden path

tell LLVM about impossible niche tags

remove Nonterminal and TokenKind::Interpolated

re-use Sized fast-path

Library

add core::intrinsics::simd::{simd_extract_dyn, simd_insert_dyn}

initial UnsafePinned implementation (Part 1: Libs)

polymorphize array::IntoIter's iterator impl

speed up String::push and String::insert

std: add Output::exit_ok

Cargo

added symlink resolution for workspace-path-hash

improved error message when build-dir template var is invalid

Rustdoc

search: add unbox flag to Result aliases

enable Markdown extensions when looking for doctests

Clippy

arbitrary_source_item_ordering should ignore test modules

implicit_return: better handling of asynchronous code

accept self.cmp(other).into() as canonical PartialOrd impl

add manual_abs_diff lint

consecutive returns dont decrease cognitive Complexity level anymore

consider nested lifetimes in mut_from_ref

correctly handle bracketed type in default_constructed_unit_struct

deprecate match_on_vec_items lint

do not propose to auto-derive Clone in presence of unsafe fields

fix: iter_cloned_collect false positive with custom From/IntoIterator impl

fix: map_entry: don't emit lint before checks have been performed

fix: redundant_clone false positive in overlapping lifetime

various fixes for manual_is_power_of_two

Rust-Analyzer

ast: return correct types for make::expr_* methods

add children modules feature

add normalizeDriveLetter

distribute x64 and aarch64 Linux builds with PGO optimizations

fix dyn compatibility code bypassing callable_item_signature query

fix a small bug with catastrophic effects

fix an incorrect ExpressionStore that was passed

prevent panics when there is a cyclic dependency between closures

shadow type by module

ignore errors from rustfmt which may trigger error notification

port closure inference from rustc

Rust Compiler Performance Triage

Relatively small changes this week, nothing terribly impactful (positive or negative).

Triage done by @simulacrum. Revision range: e643f59f..15f58c46

1 Regressions, 3 Improvements, 3 Mixed; 2 of them in rollups 35 artifact comparisons made in total

Full report here

Approved RFCs

Changes to Rust follow the Rust RFC (request for comments) process. These are the RFCs that were approved for implementation this week:

No RFCs were approved this week.

Final Comment Period

Every week, the team announces the 'final comment period' for RFCs and key PRs which are reaching a decision. Express your opinions now.

Tracking Issues & PRs

Rust

Split elided_lifetime_in_paths into tied and untied

check types of const param defaults

Stabilize flags for doctest cross compilation

Do not remove trivial SwitchInt in analysis MIR

Implement a lint for implicit autoref of raw pointer dereference - take 2

Implement Default for raw pointers

make abi_unsupported_vector_types a hard error

Stabilize let chains in the 2024 edition

Make closure capturing have consistent and correct behaviour around patterns

Stabilize the cell_update feature

Other Areas

*No Items entered Final Comment Period this week for Rust RFCs, Cargo, Language Team, Language Reference or Unsafe Code Guidelines.

Let us know if you would like your PRs, Tracking Issues or RFCs to be tracked as a part of this list.

New and Updated RFCs

No New or Updated RFCs were created this week.

Upcoming Events

Rusty Events between 2025-04-16 - 2025-05-14 🦀

Virtual

2025-04-16 | Virtual (Vancouver, BC, CA) | Vancouver Rust

Rust Study/Hack/Hang-out

2025-04-17 | Virtual and In-Person (Redmond, WA, US) | Seattle Rust User Group

April, 2025 SRUG (Seattle Rust User Group) Meetup

2025-04-22 | Virtual (Dallas, TX, US) | Dallas Rust User Meetup

Fourth Tuesday

2025-04-23 | Virtual (Cardiff, UK) | Rust and C++ Cardiff

Beyond embedded - OS development in Rust

2025-04-24 | Virtual (Berlin, DE) | Rust Berlin

Rust Hack and Learn

2025-04-24 | Virtual (Charlottesville, VA, US) | Charlottesville Rust Meetup

Part 2: Quantum Computers Can’t Rust-Proof This!"

2025-05-03 | Virtual (Kampala, UG) | Rust Circle Meetup

Rust Circle Meetup

2025-05-05 | Virtual (Tel Aviv-Yafo, IL) | Rust 🦀 TLV

Tauri: Cross-Platform desktop applications with Rust and web technologies

2025-05-07 | Virtual (Indianapolis, IN, US) | Indy Rust

Indy.rs - with Social Distancing

2025-05-08 | Virtual (Berlin, DE) | Rust Berlin

Rust Hack and Learn

2025-05-13 | Virtual (Dallas, TX, US) | Dallas Rust User Meetup

Second Tuesday

Asia

2025-04-22 | Tel Aviv-Yafo, IL | Rust 🦀 TLV

In person Rust April 2025 at Braavos in Tel Aviv in collaboration with StarkWare

Europe

2025-04-19 | Istanbul, TR | Türkiye Rust Community

Rust Konf Türkiye

2025-04-23 | London, UK | London Rust Project Group

Fusing Python with Rust using raw C bindings

2025-04-24 | Aarhus, DK | Rust Aarhus

Talk Night at MFT Energy

2025-04-24 | Edinburgh, UK | Rust and Friends

Rust and Friends (evening pub)

2025-04-24 | Manchester, UK | Rust Manchester

Rust Manchester April Code Night

2025-04-25 | Edinburgh, UK | Rust and Friends

Rust and Friends (daytime coffee)

2025-04-26 | Stockholm, SE | Stockholm Rust

Ferris' Fika Forum #11

2025-04-29 | London, UK | Rust London User Group

LDN Talks April 2025 Community Showcase

2025-04-29 | Paris, FR | Rust Paris

Rust meetup #76

2025-04-30 | Frankfurt, DE | Rust Rhein-Main

Kubernetes Operator in Rust

2025-05-01 | Nürnberg, DE | Rust Nuremberg

Hackers Hike 0x0

2025-05-06 - 2025-05-07 | Paris, FR | WebAssembly and Rust Meetup

GOSIM AI Paris 2025

2025-05-06 | Paris, FR | WebAssembly and Rust Meetup (Wasm Empowering AI)

GOSIM AI Paris 2025 (Discount available)

2025-05-07 | Madrid, ES | MadRust

VII Lenguajes, VII Perspectivas, I Problema

2025-05-07 | Oxford, UK | Oxford Rust Meetup Group

Oxford Rust and C++ social

2025-05-08 | Gdansk, PL | Rust Gdansk

Rust Gdansk Meetup #8

2025-05-08 | London, UK | London Rust Project Group

Adopting Rust (Hosted by Lloyds bank)

2025-05-13 | Amsterdam, NL | RustNL

RustWeek 2025 announcement

2025-05-13 - 2025-05-17 | Utrecht, NL | Rust NL

RustWeek 2025

2025-05-14 | Reading, UK | Reading Rust Workshop

Reading Rust Meetup

North America

2025-04-17 | Mountain View, CA, US | Hacker Dojo

RUST MEETUP at HACKER DOJO

2025-04-17 | Nashville, TN, US | Music City Rust Developers

Using Rust For Web Series 1 : Why HTMX Is Bad

2025-04-17 | Redmond, WA, US | Seattle Rust User Group

April, 2025 SRUG (Seattle Rust User Group) Meetup

2025-04-22 | Detroit, MI, US | Detroit Rust

Rust Community Meet and Conference Report - Ann Arbor

2025-04-23 | Austin, TX, US | Rust ATX

Rust Lunch - Fareground

2025-04-23 | Austin, TX, US | Rust ATX

Rust Lunch - Fareground 2025-04-23 | Spokane, WA, US | Spokane Rust

Community Show & Tell at Fuel Coworking

2025-04-24 | Atlanta, GA, US | Rust Atlanta

3rd 3RD TIME OMG YES!

2025-04-25 | Boston, MA, US | Boston Rust Meetup

Ball Square Rust Lunch, Apr 25

2025-05-01 | Saint Louis, MO, US | STL Rust

SIUE Capstone Project reflections on Rust

2025-05-03 | Boston, MA, US | Boston Rust Meetup

Boston Common Rust Lunch, May 3

2025-05-08 | México City, MX | Rust MX

Calculando con el compilador: Compiler time vs Run time

2025-05-08 | Portland, OR, US | PDXRust

Apache DataFusion: A Fast, Extensible, Modular Analytic Query Engine in Rust

2025-05-11 | Boston, MA, US | Boston Rust Meetup

Porter Square Rust Lunch, May 11

Oceania

2025-04-22 | Barton, AC, AU | Canberra Rust User Group

April Meetup

If you are running a Rust event please add it to the calendar to get it mentioned here. Please remember to add a link to the event too. Email the Rust Community Team for access.

Jobs

Please see the latest Who's Hiring thread on r/rust

Quote of the Week

IEEE 754 floating point, proudly providing counterexamples since 1985!

– Johannes Dahlström on rust-internals

Thanks to Ralf Jung for the suggestion!

Please submit quotes and vote for next week!

This Week in Rust is edited by: nellshamrell, llogiq, cdmistman, ericseppanen, extrawurst, U007D, joelmarcey, mariannegoldin, bennyvasquez, bdillo

Email list hosting is sponsored by The Rust Foundation

Discuss on r/rust

[zylophonie]

i need to log off because listening to transgender dysphoria blues i hear the line as "rustup on the coast i wish i could've spent the whole day alone"

[fragariavescana]

rm -rf $HOME/.rustup covers a multitude of sins

[z-arcane]

Running rustup on my computergirl gf

[charlotteathena]

i like that rustup and volta and rye are all the same gender of tool. its like a very specific way to do a version manager but its really nice

[mutter-official]

me but w coding projects and @rustup-official encouraging me

[infernovm]

Rust 1.88 adds support for naked functions

Rust 1.88 has been released, featuring support for writing naked functions, as well as backing for Boolean literals. The update of the popular fast and safe programming language was announced June 26 by the Rust Release Team. Current Rust users can get Rust 1.88 by running rustup update stable. Rust 1.88 adds language support for writing naked functions with no compiler-generated epilogue and…

[souhaillaghchimdev]

Learning Rust for Programmers

Rust is a modern programming language that prioritizes safety, performance, and concurrency. Originally developed by Mozilla, Rust is designed for systems programming but has grown in popularity for a wide range of applications, including web development and game programming. In this post, we’ll explore what makes Rust unique and how you can get started learning it.

Why Learn Rust?

Memory Safety: Rust's ownership model ensures memory safety without the need for a garbage collector.

Performance: Rust offers performance comparable to C and C++, making it suitable for system-level programming.

Concurrency: Built-in support for concurrent programming helps avoid data races.

Growing Ecosystem: A vibrant community and ecosystem with libraries and tools (crates) available via Cargo.

Interoperability: Can easily integrate with existing C and C++ codebases.

Getting Started with Rust

To start programming in Rust, follow these steps:

Install Rust: Use rustup, the Rust toolchain installer. Follow the instructions at rust-lang.org.

Set Up Your Environment: Use an IDE like Visual Studio Code with the Rust extension for syntax highlighting and IntelliSense.

Create a New Project: Use Cargo, Rust’s package manager and build system.

Basic Syntax and Features

Here are some fundamental concepts in Rust:

Variables and Mutability

fn main() { let x = 5; // immutable let mut y = 10; // mutable y += 5; println!("x: {}, y: {}", x, y); }

Control Flow

fn main() { let number = 6; if number % 2 == 0 { println!("Even"); } else { println!("Odd"); } }

Functions

fn add(a: i32, b: i32) -> i32 { a + b } fn main() { let result = add(5, 3); println!("Result: {}", result); }

Key Concepts in Rust

Ownership: Each value in Rust has a single owner, preventing data races.

Borrowing: References allow functions to access data without taking ownership.

Lifetime: Rust tracks how long references are valid to prevent dangling references.

Learning Resources

The Rust Programming Language: The official book, available for free online.

Rust by Example: Hands-on tutorials to learn Rust through examples.

Exercism: Practice Rust coding exercises with mentorship.

Rustlings: Small exercises to get you familiar with Rust syntax and concepts.

Best Practices

Write clear and concise code with meaningful variable names.

Use the Rust compiler's warnings to improve code quality.

Leverage Cargo for dependency management and building projects.

Participate in the Rust community through forums, Discord, or local meetups.

Conclusion

Learning Rust can open doors to systems programming, high-performance applications, and much more. Its focus on safety and concurrency makes it an ideal choice for modern development. Dive into Rust today, and start building efficient and robust applications!

[codezup]

Master Rust Error Handling: A Practical Guide

Step-by-Step Explanation Introduction to Rust Error Handling Objective: Understand the importance of robust error handling in Rust for writing reliable software. Prerequisites: Basic Rust syntax and concepts. Tools Needed: Rustup, Cargo, and a code editor. Resources: Rust Book, Cargo Documentation. Understanding Core Concepts Result and Option: Handle errors gracefully with Result for…

[draegerit]

Rust: Die Grundlagen - 1. Installation und Konfiguration

In diesem Eröffnungsbeitrag werde ich dir Schritt für Schritt erklären, wie du deinen Windows-PC optimal für die Rust-Programmierung einrichtest. Dabei verwende ich Windows 10 als Betriebssystem und Visual Studio Code als Entwicklungsumgebung. Doch keine Sorge, ich werde später noch ausführlicher darauf eingehen.

Installieren von Microsoft Visual Studio

Starten wir zunächst damit und installieren Microsoft Visual Studio (dieses ist noch nicht das Paket Visual Studio Code!). Du kannst dort zwischen drei Versionen wählen, von diesen wählen wir die Community Version und laden die knapp 3,8 MB große Installationsdatei herunter und starten diese anschließen. Zunächst werden einige Dateien heruntergeladen und installiert.

Im Anschluss wird dann der eigentliche Installer gestartet und wir können die Pakete auswählen. Hier sind bereits einige Pakete vorausgewählt wo wir zunächst den Haken entfernen. - ASP.NET und Webentwicklung, - Azure-Entwicklung Nun wählen wir die drei nachfolgenden Pakete aus: - .NET-Desktopentwicklung, - Desktopentwicklung mit C++, - Entwicklung für die universelle Windows-Plattform

Der angezeigte knapp 23 GB benötigte Speicherplatz wird für diese Auswahl nicht benötigt, es werden lediglich knapp 6 GB an Daten heruntergeladen. Wenn die Pakete heruntergeladen sind dann empfiehlt das Programm einen Neustart des Computers, jedoch empfehle ich dieses erst im Abschluss der Installation und Konfiguration zu machen.

Installieren von Rust

Im nächsten Schritt installieren wir die Programmiersprache Rust. Dafür laden wir das Entsprechende Paket (32-Bit oder 64-Bit je nach System) von https://www.rust-lang.org/tools/install herunter.

Wenn das Paket ausgewählt und heruntergeladen wurde dann starten wir die Datei rustup-init.exe. Es öffnet sich dann ein Terminalfenster wo wir über die Auswahl 1 die Installation starten können.

Während der Installation werden noch einige Daten aus dem Netz geladen und installiert.

Wenn auch dieser Vorgang abgeschlossen ist, dann bestätigen wir das Fenster mit Enter und es eschließt sich von selbst.

Installation und Konfiguration von Rust in Visual Studio Code

Nun installieren wir die Entwicklungsumgebung Visual Studio Code. Eigentlich können wir auch in einem einfachen Texteditor oder Notepad++ programmieren und über die Kommandozeile Kompilieren und ausführen. Eine Entwicklungsumgebung wie Visual Studio Code bietet jedoch einigen Komfort wie Codevervollständigung, Syntaxhighlighting etc. Das Paket Visual Studio Code können wir ebenso kostenfrei von Microsoft herunterladen. Im Installer müssen wir zunächst die Lizenzbedingung akzeptieren, den Rest belasse ich so wie dieser vorgegeben ist.

Wenn der Installer beendet ist, dann wird sofort Visual Studio Code ausgeführt.

Nun müssen wir den Computer einmal neustarten damit dieser Vorgang abgeschlossen ist (und auch die Umgebungsvariablen neu eingelesen werden). Installieren der Erweiterungen für Rust Damit wir noch etwas komfortabler mit Rust in Visual Studio Code programmieren können, installieren wir zwei Erweiterungen. - rust-analyzer, - CodeLLDB

Erstellen eines Projektes mit Rustc

Nachdem wir alle benötigten Schritte zur Installation und Konfiguration von Rust auf dem PC ausgeführt haben können wir nun ein erstes Projekt erzeugen. Dazu navigieren wir zum Terminalfenster über Terminal > New Terminal und gelangen dann im UserHome. In diesem Verzeichniss erstellen wir zunächst unser Verzeichniss für die Ablage aller Projekte, ich benenne dieses einfach mal mit Rust und wechsle auch gleich in dieses. PS C:UsersDraeS> mkdir Rust PS C:UsersDraeS> cd Rust In diesem Ordner möchte ich nun ein erstes Projekt erstellen dazu geben wir den nachfolgenden Befehl ein. PS C:UsersDraeSRust> cargo new hello_world Created binary (application) `hello_world` package PS C:UsersDraeSRust> Den neuen Ordner können wir nun über VSC öffnen indem wir im Explorer (1) die Schaltfläche "Open Folder" (2) betätigen. Nun müssen wir noch den Ordner wählen (4) und das ganze mit "Ordner auswählen" (5) bestätigen.

Wenn der Ordner eingebunden wurde, dann muss man noch bestätigen das man diesem Vertraut dieses ist besonders wichtig wenn du von unbekannter Quelle ein Projekt übernimmst denn immerhin bekommst du ggf. ein kompilat in form einer EXE-Datei mit dazu.

Wenn wir dieses bestätigt haben dann sehen wir im Explorer einen Baum mit einigen Dateien welche für uns angelegt wurden. Dazu zählt unter anderem die Datei main.rs unter .src. Mit einem doppelklick öffnen wir diese und sehen bereits eine Funktion main mit der Ausgabe "Hello, world!"

Diese Datei können wir nun über zwei wege ausführen. Kompilieren und ausführen über das Terminal dfhgsgfsg

Kompilieren und ausführen über rust-analyzer Im Abschnitt "Installation & Konfiguration" haben wir die Erweiterung "rust-analyzer" installiert. Diese Erweiterung bringt unter anderem noch zwei Shortcuts mit über welche wir den Ausführen oder Debuggen können. Zum bloßen ausführen reicht hier ein klick auf "Run" aus.

Es wird neu kompiliert und ausgeführt. Die Ausgabe im Terminal bleibt die gleiche nur das wir uns bei diesem Weg die Eingabe im Terminalfenster sparen.

Abschluss & Ausblick

Im Abschluss dieses Beitrags haben wir erfolgreich Visual Studio Code installiert und bereits ein erstes Projekt mithilfe von Cargo erstellt und ausgeführt. Im nächsten Beitrag widmen wir uns einer detaillierten Betrachtung der Rust-Programmiersprache. Du wirst eine umfassende Übersicht über Datentypen erhalten und lernen, wie du Variablen, Konstanten und vieles mehr in Rust anlegst. Bleib dran, denn wir setzen unsere Reise in die Welt von Rust fort! Read the full article

[this-week-in-rust]

This Week in Rust 599

Hello and welcome to another issue of This Week in Rust! Rust is a programming language empowering everyone to build reliable and efficient software. This is a weekly summary of its progress and community. Want something mentioned? Tag us at @thisweekinrust.bsky.social on Bluesky or @ThisWeekinRust on mastodon.social, or send us a pull request. Want to get involved? We love contributions.

This Week in Rust is openly developed on GitHub and archives can be viewed at this-week-in-rust.org. If you find any errors in this week's issue, please submit a PR.

Want TWIR in your inbox? Subscribe here.

Updates from Rust Community

Official

Announcing Google Summer of Code 2025 selected projects

Foundation

10 Years of Stable Rust: An Infrastructure Story

Newsletters

This Month in Rust OSDev: April 2025 | Rust OSDev

The Embedded Rustacean Issue #45

Project/Tooling Updates

Avian Physics 0.3

Two months in Servo: CSS nesting, Shadow DOM, Clipboard API, and more

Cot v0.3: Even Lazier

Streaming data analytics, Fluvio 0.17.3 release

CGP v0.4 is Here: Unlocking Easier Debugging, Extensible Presets, and More

Rama v0.2

Observations/Thoughts

Bad Type Patterns - The Duplicate duck

Rust nightly features you should watch out for

Lock-Free Rust: How to Build a Rollercoaster While It’s on Fire

Simple & type-safe localization in Rust

From Rust to AVR assembly: Dissecting a minimal blinky program

Tarpaulins Week Of Speed

Rustls Server-Side Performance

Is Rust the Future of Programming?

Rust Walkthroughs

Functional asynchronous Rust

The Power of Compile-Time ECS Architecture in Rust

[video] Build with Naz : Spinner animation, lock contention, Ctrl+C handling for TUI and CLI

Miscellaneous

April 2025 Rust Jobs Report

Crate of the Week

This week's crate is brush, a bash compatible shell implemented completely in Rust.

Thanks to Josh Triplett for the suggestion!

Please submit your suggestions and votes for next week!

Calls for Testing

An important step for RFC implementation is for people to experiment with the implementation and give feedback, especially before stabilization.

If you are a feature implementer and would like your RFC to appear in this list, add a call-for-testing label to your RFC along with a comment providing testing instructions and/or guidance on which aspect(s) of the feature need testing.

No calls for testing were issued this week by Rust, Rust language RFCs or Rustup.

Let us know if you would like your feature to be tracked as a part of this list.

RFCs

Rust

Rustup

If you are a feature implementer and would like your RFC to appear on the above list, add the new call-for-testing label to your RFC along with a comment providing testing instructions and/or guidance on which aspect(s) of the feature need testing.

Call for Participation; projects and speakers

CFP - Projects

Always wanted to contribute to open-source projects but did not know where to start? Every week we highlight some tasks from the Rust community for you to pick and get started!

Some of these tasks may also have mentors available, visit the task page for more information.

rama - add ffi/rama-rhai: support ability to use services and layers written in rhai

rama - support akamai h2 passive fingerprint and expose in echo + fp services

If you are a Rust project owner and are looking for contributors, please submit tasks here or through a PR to TWiR or by reaching out on X (formerly Twitter) or Mastodon!

CFP - Events

Are you a new or experienced speaker looking for a place to share something cool? This section highlights events that are being planned and are accepting submissions to join their event as a speaker.

No Calls for papers or presentations were submitted this week.

If you are an event organizer hoping to expand the reach of your event, please submit a link to the website through a PR to TWiR or by reaching out on X (formerly Twitter) or Mastodon!

Updates from the Rust Project

397 pull requests were merged in the last week

Compiler

async drop fix for async_drop_in_place<T> layout for unspecified T

better error message for late/early lifetime param mismatch

perf: make the assertion in Ident::new debug-only

perf: merge typeck loop with static/const item eval loop

Library

implement (part of) ACP 429: add DerefMut to Lazy[Cell/Lock]

implement VecDeque::truncate_front()

Cargo

network: use Retry-After header for HTTP 429 responses

rustc: Don't panic on unknown bins

add glob pattern support for known_hosts

add support for -Zembed-metadata

fix tracking issue template link

make cargo script ignore workspaces

Rustdoc

rustdoc-json: remove newlines from attributes

ensure that temporary doctest folder is correctly removed even if doctests failed

Clippy

clippy: item_name_repetitions: exclude enum variants with identical path components

clippy: return_and_then: only lint returning expressions

clippy: unwrap_used, expect_used: accept macro result as receiver

clippy: add allow_unused config to missing_docs_in_private_items

clippy: add new confusing_method_to_numeric_cast lint

clippy: add new lint: cloned_ref_to_slice_refs

clippy: fix ICE in missing_const_for_fn

clippy: fix integer_division false negative for NonZero denominators

clippy: fix manual_let_else false negative when diverges on simple enum variant

clippy: fix unnecessary_unwrap emitted twice in closure

clippy: fix diagnostic paths printed by dogfood test

clippy: fix false negative for unnecessary_unwrap

clippy: make let_with_type_underscore help message into a suggestion

clippy: resolve through local re-exports in lookup_path

Rust-Analyzer

fix postfix snippets duplicating derefs

resolve doc path from parent module if outer comments exist on module

still complete parentheses & method call arguments if there are existing parentheses, but they are after a newline

Rust Compiler Performance Triage

Lot of changes this week. Overall result is positive, with one large win in type check.

Triage done by @panstromek. Revision range: 62c5f58f..718ddf66

Summary:

(instructions:u) mean range count Regressions ❌ (primary) 0.5% [0.2%, 1.4%] 113 Regressions ❌ (secondary) 0.5% [0.1%, 1.5%] 54 Improvements ✅ (primary) -2.5% [-22.5%, -0.3%] 45 Improvements ✅ (secondary) -0.9% [-2.3%, -0.2%] 10 All ❌✅ (primary) -0.3% [-22.5%, 1.4%] 158

Full report here

Approved RFCs

Changes to Rust follow the Rust RFC (request for comments) process. These are the RFCs that were approved for implementation this week:

No RFCs were approved this week.

Final Comment Period

Every week, the team announces the 'final comment period' for RFCs and key PRs which are reaching a decision. Express your opinions now.

Tracking Issues & PRs

Rust

Tracking Issue for non_null_from_ref

Add std::io::Seek instance for std::io::Take

aarch64-softfloat: forbid enabling the neon target feature

Stabilize the avx512 target features

make std::intrinsics functions actually be intrinsics

Error on recursive opaque ty in HIR typeck

Remove i128 and u128 from improper_ctypes_definitions

Guarantee behavior of transmuting Option::<T>::None subject to NPO

Temporary lifetime extension through tuple struct and tuple variant constructors

Stabilize tcp_quickack

Change the desugaring of assert! for better error output

Make well-formedness predicates no longer coinductive

No Items entered Final Comment Period this week for Cargo, Rust RFCs, Language Reference, Language Team or Unsafe Code Guidelines.

Let us know if you would like your PRs, Tracking Issues or RFCs to be tracked as a part of this list.

New and Updated RFCs

RFC: Extended Standard Library (ESL)

Upcoming Events

Rusty Events between 2025-05-14 - 2025-06-11 🦀

Virtual

2025-05-15 | Hybrid (Redmond, WA, US) | Seattle Rust User Group

May, 2025 SRUG (Seattle Rust User Group) Meetup

2025-05-15 | Virtual (Girona, ES) | Rust Girona

Sessió setmanal de codificació / Weekly coding session

2025-05-15 | Virtual (Joint Meetup, Europe + Israel) | Rust Berlin + Rust Paris + London Rust Project Group + Rust Zürisee + Rust TLV + Rust Nürnberg + Rust Munich + Rust Aarhus + lunch.rs

🦀 Celebrating 10 years of Rust 1.0 🦀

2025-05-15 | Virtual (Zürich, CH) | Rust Zürisee

🦀 Celebrating 10 years of Rust 1.0 (co-event with berline.rs) 🦀

2025-05-18 | Virtual (Dallas, TX, US) | Dallas Rust User Meetup

Rust Readers Discord Discussion: Async Rust

2025-05-19 | Virtual (Tel Aviv-yafo, IL) | Rust 🦀 TLV

Tauri: Cross-Platform desktop applications with Rust and web technologies

2025-05-20 | Hybrid (EU/UK) | Rust and C++ Dragons (former Cardiff)

Talk and Connect - Fullstack - with Goetz Markgraf and Ben Wishovich

2025-05-20 | Virtual (London, UK) | Women in Rust

Threading through lifetimes of borrowing - the Rust way

2025-05-20 | Virtual (Tel Aviv, IL) | Code Mavens 🦀 - 🐍 - 🐪

Rust at Work a conversation with Ran Reichman Co-Founder & CEO of Flarion

2025-05-20 | Virtual (Washington, DC, US) | Rust DC

Mid-month Rustful

2025-05-21 | Hybrid (Vancouver, BC, CA) | Vancouver Rust

Linking

2025-05-22 | Virtual (Berlin, DE) | Rust Berlin

Rust Hack and Learn

2025-05-22 | Virtual (Girona, ES) | Rust Girona

Sessió setmanal de codificació / Weekly coding session

2025-05-25 | Virtual (Dallas, TX, US) | Dallas Rust User Meetup

Rust Readers Discord Discussion: Async Rust

2025-05-27 | Virtual (Dallas, TX, US) | Dallas Rust User Meetup

Fourth Tuesday

2025-05-27 | Virtual (Tel Aviv, IL) | Code Mavens 🦀 - 🐍 - 🐪

Rust at Work - conversation with Eli Shalom & Igal Tabachnik of Eureka Labs

2025-05-29 | Virtual (Nürnberg, DE) | Rust Nuremberg

Rust Nürnberg online

2025-05-29 | Virtual (Tel Aviv-yafo, IL) | Rust 🦀 TLV

שיחה חופשית ווירטואלית על ראסט

2025-06-01 | Virtual (Dallas, TX, US) | Dallas Rust User Meetup

Rust Readers Discord Discussion: Async Rust

2025-06-03 | Virtual (Tel Aviv-yafo, IL) | Rust 🦀 TLV

Why Rust? למה ראסט? -

2025-06-04 | Virtual (Indianapolis, IN, US) | Indy Rust

Indy.rs - with Social Distancing

2025-06-05 | Virtual (Berlin, DE) | Rust Berlin

Rust Hack and Learn

2025-06-07 | Virtual (Kampala, UG) | Rust Circle Meetup

Rust Circle Meetup

2025-06-08 | Virtual (Dallas, TX, US) | Dallas Rust User Meetup

Rust Readers Discord Discussion: Async Rust

2025-06-10 | Virtual (Dallas, TX, US) | Dallas Rust User Meetup

Second Tuesday

2025-06-10 | Virtual (London, UK) | Women in Rust

👋 Community Catch Up

Asia

2025-05-17 | Delhi, IN | Rust Delhi

Rust Delhi Meetup #10

2025-05-24 | Bangalore/Bengaluru, IN | Rust Bangalore

May 2025 Rustacean meetup

2025-06-08 | Tel Aviv-yafo, IL | Rust 🦀 TLV

In person Rust June 2025 at AWS in Tel Aviv

Europe

2025-05-13 - 2025-05-17 | Utrecht, NL | Rust NL

RustWeek 2025

2025-05-14 | Reading, UK | Reading Rust Workshop

Reading Rust Meetup

2025-05-15 | Berlin, DE | Rust Berlin

10 years anniversary of Rust 1.0

2025-05-15 | Oslo, NO | Rust Oslo

Rust 10-year anniversary @ Appear

2025-05-16 | Amsterdam, NL | RustNL

Rust Week Hackathon

2025-05-16 | Utrecht, NL | Rust NL Meetup Group

RustWeek Hackathon

2025-05-17 | Amsterdam, NL | RustNL

Walking Tour around Utrecht - Saturday

2025-05-20 | Dortmund, DE | Rust Dortmund

Talk and Connect - Fullstack - with Goetz Markgraf and Ben Wishovich

2025-05-20 | Aarhus, DK | Rust Aarhus

Hack Night - Robot Edition

2025-05-20 | Leipzig, SN, DE | Rust - Modern Systems Programming in Leipzig

Topic TBD

2025-05-22 | Augsburg, DE | Rust Augsburg

Rust meetup #13:A Practical Guide to Telemetry in Rust

2025-05-22 | Bern, CH | Rust Bern

2025 Rust Talks Bern #3 @zentroom

2025-05-22 | Paris, FR | Rust Paris

Rust meetup #77

2025-05-22 | Stockholm, SE | Stockholm Rust

Rust Meetup @UXStream

2025-05-27 | Basel, CH | Rust Basel

Rust Meetup #11 @ Letsboot Basel

2025-05-27 | Vienna, AT | Rust Vienna

Rust Vienna - May at Bitcredit 🦀

2025-05-29 | Oslo, NO | Rust Oslo

Rust Hack'n'Learn at Kampen Bistro

2025-05-31 | Stockholm, SE | Stockholm Rust

Ferris' Fika Forum #12

2025-06-04 | Ghent, BE | Systems Programming Ghent

Grow smarter with embedded Rust

2025-06-04 | München, DE | Rust Munich

Rust Munich 2025 / 2 - Hacking Evening

2025-06-04 | Oxford, UK | Oxford Rust Meetup Group

Oxford Rust and C++ social

2025-06-05 | München, DE | Rust Munich

Rust Munich 2025 / 2 - Hacking Evening

2025-06-11 | Reading, UK | Reading Rust Workshop

Reading Rust Meetup

North America

2025-05-15 | Hybrid (Redmond, WA, US) | Seattle Rust User Group

May, 2025 SRUG (Seattle Rust User Group) Meetup

2025-05-15 | Mountain View, CA, US | Hacker Dojo

RUST MEETUP at HACKER DOJO

2025-05-15 | Nashville, TN, US | Music City Rust Developers

Using Rust For Web Series 2 : Why you, Yes You. Should use Hyperscript!

2025-05-15 | Hybrid (Redmond, WA, US) | Seattle Rust User Group

May, 2025 SRUG (Seattle Rust User Group) Meetup

2025-05-18 | Albuquerque, NM, US | Ideas and Coffee

Intro Level Rust Get-together

2025-05-20 | San Francisco, CA, US | San Francisco Rust Study Group

Rust Hacking in Person

2025-05-21 | Hybrid (Vancouver, BC, CA) | Vancouver Rust

Linking

2025-05-28 | Austin, TX, US | Rust ATX

Rust Lunch - Fareground

2025-05-29 | Atlanta, GA, US | Rust Atlanta

Rust-Atl

2025-06-05 | Saint Louis, MO, US | STL Rust

Leptos web framework

South America

2025-05-28 | Montevideo, DE, UY | Rust Meetup Uruguay

Primera meetup de Rust de 2025!

2025-05-31 | São Paulo, BR | Rust São Paulo Meetup

Encontro do Rust-SP na WillBank

If you are running a Rust event please add it to the calendar to get it mentioned here. Please remember to add a link to the event too. Email the Rust Community Team for access.

Jobs

Please see the latest Who's Hiring thread on r/rust

Quote of the Week

If a Pin drops in a room, and nobody around understands it, does it make an unsound? #rustlang

– Josh Triplett on fedi

Thanks to Josh Triplett for the self-suggestion!

Please submit quotes and vote for next week!

This Week in Rust is edited by: nellshamrell, llogiq, cdmistman, ericseppanen, extrawurst, U007D, joelmarcey, mariannegoldin, bennyvasquez, bdillo

Email list hosting is sponsored by The Rust Foundation

Discuss on r/rust

[itsjunetime]

this is actually surprisingly common! it’s a strategy that rustup uses in some situations where dropping requires some complicated/expensive work (according to a talk i watched a year ago or so), and also (kinda) used by the mold linker as well.

I think it may be useful to have a dedicated thread that you use for this sort of thing, instead of spinning up a new thread each time, but honestly who knows. maybe it doesn’t actually have that much of a performance impact.

so im implementing asynchronous deallocation and like

this feels so wrong??? but it works perfectly and doesnt hog the main thread so im keeping it

[hackgineer]

Getting Rusty

In the ongoing effort to teach an old Data collector new tricks, with a steadfast  desire to stay focused and undistracted, lets.....

learn a new coding language! 

why Rust? to be perfectly honest, it started with a small clickbait ad at the bottom of my screen one day. A quoted headline about this new language creating a small buzz in the industry, like a new undiscovered vacation island...click!

I also like the name. For me, it sort of embraces that feeling I get when I start to think about learning to code again, its the same feeling I get when I find rust forming on a prized metallic possession. 

Rust is touted for runtime speed, safe memory usage, and advantages using multiple processors, making it ideal for web applications and services requiring high performance, CLI applications and embedded devices.

Lastly, in my research I also became aware that Rust has a reputation of being hard to learn. That alone is enough of an invitation to try.

so then, lets get started.

I dug up an old macbook pro running OS X El Capitan 10.11.6 to use for this coding project. Rust can be installed on both Unix and Linux, an Windows.

I used an install script that can be found at rustup.rs like so:

step 2: choose option 1.

Install finished. Woohoo!

step 3: Check cargo install and setup a project folder.

step 4: Test run the compiler and Hello World code.

So far pretty simple, no issues thus far, Rust is installed and working and now I am ready to start writing some code. I think I am going to dig up a few useful scripts in some different languages, like C, bash, python, etc. and attempt to rewrite them in Rust. 

Cheers and Stay tuned!

@hackgineer

[techdirectarchive]

How to install Rust in a Linux System

How to install Rust in a Linux System

Rust is a fast and memory-efficient programming language with no runtime or garbage collector that integrates seamlessly with other languages. This article will show you how to install the Rust programming language on Ubuntu 20.04 LTS and start a Rust project. Other similar guides are here :How to install Zabbix Monitoring Tool on a Linux System and How to Install MongoDB on a Linux System and…